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Since February 1997 the BL Lac object Mkn 501 is in a ``high state'' ofgamma-ray emission. The HEGRA collaboration has studied Mkn 501 with their airCherenkov telescopes on La Palma. Here we report on observations with the 5 m^2telescope (threshold approx. 1.5 TeV) operated in a stand alone mode. Weobserved a rapidly varying flux between 0.5 to 6 times of that from the CrabNebula. On average an integral flux above 1.5 TeV of (2 + 1.3 - 0.5) x 10^-11cm^-2 s^-1 has been determined. The spectrum extends at least up to 10 TeV withan integral power law coefficient of 1.8 +- 0.2 and seems to be steeper than in1996.Comment: 5 pages, to be published in the Proceedings of the 4th Compton  Symposium, Williamsburg, Virginia, April 199

Recent observations of γ-rays above 1.5 TeV from Mkn 501 with the HEGRA 5 m2 air Čerenkov telescope